Yaesu FT-90R Operating Manual

Contents

21FT-90R OPERATING MANUALOperationHere’s an example of how to make a major frequency excursion:1. First press and hold in the MAIN DIAL knob for ½ second. You will observe thatthe 100 MHz and 10 MHz display digits are blinking, as you have now selectedthe “10 MHz Step” frequency selection mode.2. Rotate the MAIN DIAL knob to select a 10 MHz multiple nearest the desiredoperating frequency. Once you have reached the nearest 10 MHz step, press theMAIN DIAL knob momentarily to put the transceiver in the “1 MHz step” tuningmode.3. Now rotate the MAIN DIAL knob to select the desired 1 MHz segment, then pressthe MAIN DIAL knob momentarily again. The transceiver will now be ready fortuning the band in its regular tuning steps.Direct Keypad Frequency Entry (requires MH-36A6J)The desired operating frequency may be entered directly from the microphone’skeypad.To enter a frequency from the keypad, just press the numbered digits on the key-pad in the proper sequence. To round all digits to the right of the current digit to“0,” press the [#] key.Examples:To enter 146.520 MHz, press ‡ ‡ ‡ ‡ ‡ .To enter 433.000 MHz, press ‡ ‡ ‡ .AM Mode ActivationThis radio automatically selects the AM mode whenever the (VHF) frequency isset anywhere within the range 110-136 MHz, so as to allow monitoring of aircraftcommunications in this range.You may have some reason, however, to want to select the FM mode withinthis frequency range, or to change it back to AM from the FM mode. If so,use the following procedure:1. Press and hold in the key for one second, then rotate the MAIN DIALknob to select “ 3 8 A M .”2. Press the key to select “I N H I B I T . ” This setting inhibits the activation ofthe AM mode. The other settings are “A M ” (forcing the mode to be “AM”) and“A U T O ” (automatic mode selection, per the above description).3. Press and hold in the key for 1.5 second to save the new setting andexit to normal operation.